Improvement in pulleys for band-saws



` WILLIAM H. DOANE. Improvement in Pulley for Band-Saws. `N`o".127,o33.

Patehted May 21 UNITED STATES ATENT WILLIAM H. DOANE, OF CINCINNATI,OHIO.

`IIVIPROVEMENT. IN PULLEVS FOR BAND-SAWS.

Specification forming part of Letters Patent No. 127,033, (lated May 21,1872.

Specilcation describing au Improvement in Pulleyfor Baud-Saws, inventedby WILLIAM H. DOANE, of Cincinnati, in the county of Hamilton and Stateof Ohio.

General Description.

Description of the Drawing.

Figure 1 is a partiallysectionized elevation of a band-saw pulleyembodying my invention. Fig. 2 is an axial section of the same. Figs. 3,4, and 5 are sections in the plane ofthe pulley, and to a larger scale,showing` a portion of the tire or rim in three successive stages ofmanufacture. Figs. 6 and 7 are sections in the lines .T .fr and y y,respectively.

The tire D ot' the Wheel7 or metallic por-` tion of my pulley iscomposed of sheet-steel,l and is curved or turned upward at its edges,`so as to both stii'en it and to present a circumferential dish ortrough, F, for the reception and security of a exible band or covering,Gr,

of leather. This band is glued or cemented to the upturned periphery ot'the Wheel, so as to occupy and be contined by the trough F, and isafterward turned ott', so as to be precisely circular and concentricwith the shaft, and is then encircled by the customary rubber band H. Ais a cast-iron or other cast metallic hub or Web of open pattern, andencircled by pro- .jecting screw-threaded sockets B to receive and holdthe correspondingly screw-threaded tubular spokes C et' Wrought-iron orsteel, which are tenoned and riveted to the tire D. Washers I areintroduced between the shoulders of the tenons, and the intrados orinner side of the tire.

Claim.

As an article of manufacture, the pulley for set my hand.

W. H. DOANE. f Witnesses:

GEO. H. KNIGHT, J AMEs H. LAYIIAN.

FFICE.

